Under Armour - Undeniable Sackpack. Color Pitch Gray Medium Heather/Black/Black. $24.95. 5.0 out of 5 starsAdd to favorites. 0 people have favorited this+3Brand NameUnder ArmourProduct NameUndeniable SackpackColorPitch Gray Medium Heather/Black/BlackPrice$24.95Rating5Rated 5 stars out of 5(2)